A man who dressed up as his mother in a bizarre case of real estate fraud was sentenced to more than 13 years behind bars.

Thomas Parkin was convicted May 3 on charges including grand larceny and mortgage fraud.

The fraud involved doctoring her death certificate and cashing her Social Security retirement checks for six years after she died.

He was sentenced Monday to 13 2/3 to 41 years in prison. Prosecutors said the scheme lasted six years and involved Parkin wearing a blond wig, dress and oversized sunglasses.

The 51-year-old Parkin said at sentencing that he never hurt anyone or used stolen funds for personal gain or injury.

When his mother, Irene Prusik, died in 2003 at age 73, he began impersonating her to cash her Social Security checks and keep her $2.2 million brownstone home in Park Slope, a leafy neighbourhood in the borough of Brooklyn, prosecutors said.

The house had been deeded to Thomas Parkin, but he couldn't make mortgage payments and the house was later sold at a foreclosure auction, prosecutors said.

Parkin and a co-defendant later sued the new owner under Prusik's name, claiming real estate fraud and saying the auction was invalid in part because she was still alive, prosecutors said.

To maintain the ruse, Parkin doctored his mother's death certificate and went to the Department of Motor Vehicles dressed as her in a blond wig, dress and oversized sunglasses so he could get a renewed license, prosecutors said. He also cashed Social Security checks for six years, totalling about $44 000, they said.

Jurors deliberated less than a day before finding him guilty. At trial, they were shown security footage of Parkin in drag in public, but his defense attorney said it could've been anyone.

As the property dispute dragged out, both sides eventually contacted the district attorney to accuse each other of fraud. By the time investigators arranged a meeting with the family, they had proof Prusik was dead: a photo of her tombstone in a local cemetery.

The investigators played along as Parkin showed up for the interview "wearing a red cardigan, lipstick, manicured nails and breathing through an oxygen tank," prosecutors said.

A co-defendant, Mhilton Rimolo, 49, was sentenced in October 2010 to three years in prison after he was convicted of grand larceny.